Platform



FIG. 1 is a top, perspective view of the platform;

FIG. 2 is a bottom, perspective view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is front view thereof;

FIG. 6 is a back view thereof;

FIG. 7 is a right side view thereof; and,

FIG. 8 is a left side view thereof.

The broken lines are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a platform, as shown and described. 